Optically transmissive metal electrode, electronic device, and optical device

An electronic device comprising:

• an optically transmissive metal electrode;
• and
• a structure unit supplied with electric charges through the optically transmissive metal electrode,
• the optically transmissive metal electrode including:
• a plurality of first metal wires disposed side by side along a first direction, each of the first metal wires extending along a second direction intersecting the first direction;
• and
• a plurality of second metal wires disposed side by side along a third direction parallel with a plane including the first direction and the second direction and intersecting the first direction, the second metal wires contacting the first metal wires, each of the second metal wires extending along a fourth direction parallel with the plane and intersecting the third direction,
• a first pitch between centers of the first metal wires in the first direction being not more than a shortest wavelength in a waveband including visible light,
• a second pitch between centers of the second metal wires in the third direction exceeding a longest wavelength in the waveband,
• a thickness of the first metal wires and the second metal wires along a direction vertical to the plane being not more than the shortest wavelength.

An optical device comprising:

• an optically transmissive metal electrode;
• and
• an optical member stacked on the optically transmissive metal electrode, the optical member receiving light transmitted through the optically transmissive metal electrode,
• the optically transmissive metal electrode including:
• a plurality of first metal wires disposed side by side along a first direction, each of first metal wires extending along a second direction intersecting the first direction;
• and
• a plurality of second metal wires disposed side by side along a third direction parallel with a plane including the first direction and the second direction and intersecting the first direction, the second metal wires contacting the first metal wires, each of the second metal wires extending along a fourth direction parallel with the plane and intersecting the third direction,
• a first pitch between centers of the first metal wires in the first direction being not more than a shortest wavelength in a waveband including visible light or less,
• a second pitch between centers of the second metal wires in the third direction exceeding a longest wavelength in the waveband,
• a thickness of the first metal wires and the second metal wires along a direction vertical to the plane being not more than the shortest wavelength or less.